libunbound8-1.21.1-1.1 on GA media SUSE Patch security@suse.de SUSE Security Team openSUSE-SU-2024:14391-1 Final 1 1 2024-10-08T00:00:00Z current 2024-10-08T00:00:00Z 2024-10-08T00:00:00Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z libunbound8-1.21.1-1.1 on GA media These are all security issues fixed in the libunbound8-1.21.1-1.1 package on the GA media of openSUSE Tumbleweed. The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). openSUSE-Tumbleweed-2024-14391 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/F4IYYAPWSSJTTLRJA632C5ITH6QLLWE2/ E-Mail link for openSUSE-SU-2024:14391-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://www.suse.com/security/cve/CVE-2024-8508/ SUSE CVE CVE-2024-8508 page openSUSE Tumbleweed libunbound8-1.21.1-1.1 python3-unbound-1.21.1-1.1 unbound-1.21.1-1.1 unbound-anchor-1.21.1-1.1 unbound-devel-1.21.1-1.1 unbound-munin-1.21.1-1.1 libunbound8-1.21.1-1.1 as a component of openSUSE Tumbleweed python3-unbound-1.21.1-1.1 as a component of openSUSE Tumbleweed unbound-1.21.1-1.1 as a component of openSUSE Tumbleweed unbound-anchor-1.21.1-1.1 as a component of openSUSE Tumbleweed unbound-devel-1.21.1-1.1 as a component of openSUSE Tumbleweed unbound-munin-1.21.1-1.1 as a component of openSUSE Tumbleweed NLnet Labs Unbound up to and including version 1.21.0 contains a vulnerability when handling replies with very large RRsets that it needs to perform name compression for. Malicious upstreams responses with very large RRsets can cause Unbound to spend a considerable time applying name compression to downstream replies. This can lead to degraded performance and eventually denial of service in well orchestrated attacks. The vulnerability can be exploited by a malicious actor querying Unbound for the specially crafted contents of a malicious zone with very large RRsets. Before Unbound replies to the query it will try to apply name compression which was an unbounded operation that could lock the CPU until the whole packet was complete. Unbound version 1.21.1 introduces a hard limit on the number of name compression calculations it is willing to do per packet. Packets that need more compression will result in semi-compressed packets or truncated packets, even on TCP for huge messages, to avoid locking the CPU for long. This change should not affect normal DNS traffic. CVE-2024-8508 openSUSE Tumbleweed:libunbound8-1.21.1-1.1 openSUSE Tumbleweed:python3-unbound-1.21.1-1.1 openSUSE Tumbleweed:unbound-1.21.1-1.1 openSUSE Tumbleweed:unbound-anchor-1.21.1-1.1 openSUSE Tumbleweed:unbound-devel-1.21.1-1.1 openSUSE Tumbleweed:unbound-munin-1.21.1-1.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/F4IYYAPWSSJTTLRJA632C5ITH6QLLWE2/ https://www.suse.com/security/cve/CVE-2024-8508.html CVE-2024-8508 https://bugzilla.suse.com/1231284 SUSE Bug 1231284